POP server direct access

Hi,

I'm writing a program that should process incoming mails.  While a sockets
connection to the POP server is maybe the recommended method, I'm currently
reading directly from \QTCPTMM\MAIL\<mailbox>

When reading the file (with the C open/read() functions) from such a mailbox
however, I get a few translation issues.  First of all, unlike for example
my HTML files the content doesn't get translated to EBCDIC (because the SMTP
server seems to tag those mail files with CCSID 37).  Instead the file
remains ASCII... which I tried to solve by doing the translation myself
(based on QEBCDIC table).

While this works for almost all characters, it doesn't for 'I', 'O' and 'Z'
???  I can understand that special characters would be an issue, but not
something in the range from A to Z ?

Why is the C function acting this strange... and why is viewing the file via
NetServer or EDTF going perfect ?

Thanks in advance,
Paul